Finding the Fourth Proportional to 110,735.89, 152,762.38 and 72,478.60

Step by Step Solution

1. Step 1: Write the proportion equation
   110,735.89 : 152,762.38 = 72,478.60 : x
2. Step 2: Convert to fraction form
   110,735.89/152,762.38 = 72,478.60/x
3. Step 3: Cross multiply
   110,735.89x = 152,762.38 × 72,478.60
4. Step 4: Simplify right side
   110,735.89x = 11,072,003,279.66
5. Step 5: Solve for x
   x = 11,072,003,279.66/110,735.89
6. Step 6: Final answer
   x = 99,985.68